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06/26
2025
2013
October: A pre-mixed mortar production line with proprietary intellectual property rights was put into operation. Qingdao Yihong Dry-Mix Mortar Technology Co., Ltd. was established.
October: A pre-mixed mortar production line with proprietary intellectual property rights was put into operation.
Qingdao Yihong Dry-Mix Mortar Technology Co., Ltd. was established.
2008
August: Binzhou Hongji Concrete Co., Ltd. established